Stopper



May 12, 1925. I 1,537,786

' w. w. SIMONSON ET AL s TOPPER Original Filed Juh9 l, 1918 WILLIHM W.SIMONSUN.

LEW/5 v. n. BL/HR.

' INVENTOR.

ATTORNEY.

Patented May 12, 1925.

UNITED STATES PATENT OFFICE.

WILLIAM w. smoNsoN AND LEWIS v. n. BLAIR, or oINoINNATr, OHIO; JOHN o.THOMPSON, ADMINISTRATOR, or sAIn LEWIS v. n. BLAIR, DECEASED, AssIG o s.'ro EDI-IE MANTLE LAMP COMPANY OF AMERICA, or CHICAGO, ILLINoIs, A comcal;

TION OF ILLINOIS.

STOPPER.

Original application filed; June 1, 1918, Serial No. 237,831.

0 all whom it may concern:

Be it known that we, l/VILLIAM 1V. SIMON- sort and LEWIS V. D. BLAIR,citizens of the United States, residing at Cincinnati, in the county ofHamilton and State of Ohio, have invented certain new and usefulImprovements in Stoppers, of which the following is a specification. Theinvention relates to stoppers such as may be advantageously employedwith heatinsulated containers of the kind covered by our priorapplication #237,831, filed June 1, 1918, of which the presentapplicatlon 1s a division.

The stopper herein claimed is made of glass or other vitreous andfrangible material, and is adapted to eifectuate the closure andcomplete the insulation of a heat-1nsulated receptacle.

The invention will be best understood by referring to the accompanyingdrawing in which- Figure 1 is a vertical section of the upper end of aheat-insulated receptacle, and of a stopper embodying the invention, andD Figure 2 is a similar view showing a modilied form of the stopper.

Referring to Figure 1, 1 is the outer jacket, and 2 is the container ofa heatinsulated vessel. The container 2 is provided with a horizontalflange 3 extending over the upper edge of the outer jacket and restingon a heat-insulating bond 3* of heat-treated lac, or other suitablematerial, all as described in our prior application.

The heat-insulated receptacle shown in Figure 2 is of the sameconstruction as that shown in Figure 1, and this construction, per se,forms no part of the invention claimed in this application. Ascrew-threaded collar 4. surrounds andconceals the seal 3, and carries aflange 1 extending over the flange 3. These features also are covered bythe original application.

The novel stopper which embodies the invention herein described,consists of a hollow body 6 of vitreous material which is of greaterdiameter than the mouth of the container 2, and is provided with ashoulder 6 resting on the top of said container, and with a contractedportion disposed below said shoulder and of sufficiently smalldimensions Divided and this applieaton filed March 22,

Serial No. M5592.

to readily enter'the mouth of said container. The stopper has a neck 6and upon the upper edge of this neck rests a cover 7 which is bondedthereto by heat-treated lac 7 or other suitable substance which willensure a firm union of the parts. The material employed'is fullydescribed in the original applioation, and requires no detaileddescription herein.

The cover is provided with an exhaust opening which is closed by a massof heattreated lac, or other adherent substance, 8-, over which a plate9 may be placed to protect the sealing material. Also a protective cap10 may be crimped over the edge of the cover 7 to afford furtherprotection to the seal, and to obscure and protect the bond 7*. It will,of course, be understood that the exhaust opening should be uncloseduntil the stopper is substantially completed, so that air may escape andinternal pressure such as might disrupt the closed stopper will not beproduced.

The parts shown in Figure 2 are similar to those of the stopper shown inFigure 1, but in this constructionthe stopper is devoid of the neck 6and the cover 7, and the pro.- tective cap is erimped over the shoulder6, as shown.

The stopper is held to its seat by a drinking cup 11 having means forengaging the. screw threads of the collar 1.

' Silvering may be employed to reflect thermal radiation and will beapplied to the in-. sidewall of the stopper before the stopper isclosed, but the silvering is unaffected by the heat-treatment to whichthe bonding ma-. terial is subjected, this bonding material being formedunder such low temperature conditions that the adherency and thereflective properties of the silvering remain unimpaired.

Having thus described our invention, what we claim, is:

1. A multi-part heat-insulating hollow stopper having a hermeticallysealed and, interiorally silvered glass body portion provided with aclosed bottom and an upstand ing neck.

2. A heat-insulating hollow multi-part stopper including a frangiblebody portion provided with a contracted lower end forming a shoulder,and with an upstanding open neck and a closure bonded to said neck.

3. A heat-insulating hollow frangible stopper in which the air pressureis sub-non mal, provided with a closed bottom and with an exhaustopening closed by a seal of material adherently united to the wall ofsaid opening, and with a reinforcing plate for said seal.

4c. The combination with a heat-insulated receptacle, of aheat-insulated hollow closed stopper, the space within said stopperbeing enclosed by a plurality of parts, and including a body portionextending into the neck of the receptacle and having a non-corrodibleouter surface, said stopper having also a determinate seat which extendsover and is supported from the lip of the receptacle, and having a coverprovided with an opening in its top for the reception of a plug ofmaterial dissimilar in character from that of the cover.

5. The combination with a heat-insulated receptacle, of a heat-insulatedhollow closed stopper, the space within said stopper being enclosed by aplurality of parts, and including a body portion extending into the neckof the receptacle and having a vitreous outer surface, said stopperhaving also a determinate seat which extends over and is supported fromthe lip of the receptacle, and having a cover provided with an openingin its top for the reception of a plug of materialdissimilar incharacter from that of the cover.

6. The combination with a heat-insulated receptacle, of a.heat-insulated hollow closed multi-part stopper, the space within saidstopper being enclosed by a plurality of parts and the bottom of thestopper extending into the throat of the receptacle, said stopper havinga non-corrodible outer surface and including a determinate seat forsupporting the stopper at a predetermined altitude within said throat,an inverted drinking cup removably attached to said receptacle forexertlng pressure on said stopper, and a cover for said stopper which isdisposed at a predetermined altitude relative to said seat. 7. Aheat-insulating multi-part stopper including a frangible body portionprovided with a contracted lower end forming a shoulder, and an openupper end, and a closure sealed to said upper end.

8. The combination with a heat-insulated receptacle having a drinkingcup for exerting pressure on its stopper, of a multi-part hollowheat-insulated stopper having a cover provided with an exhaust openingin its top, a hollow body portion and a closed bottom extending into theneck of the receptacle, the space within said stopper being enclosed bya plurality of parts, said stopper having a determinate seat whichextends over and is supported by the lip of the receptacle, the

body portion of the stopper having a vitreous outer surface and theopening in the cover being closed by a plug of material of differentcharacter from that of the cover.

9. A heat-insulating hollow multi-part frangible stopper for aheat-insulated receptacle, said stopper having a circumferentialshoulder for engaging the mouth of said receptacle and an upstandingneck, and a cover for closing said neck, said cover having a marginalflange encircling said neck and material disposed between said cover andsaid neck for sealing the space there between.

10. A heat-insulated hollow multi-part stopper having an upstanding openneck and a frangible body portion having a circumferential seat forsustaining said stopper in a heat-insulated receptacle, and a metalliccap having a marginal flange encircling said neck.

11. A hollow frangible heat-insulating stopper having a body portionprovided with a shoulder for sustaining said stopper above the mouth ofa heat-insulated receptaclc, and also provided with an open upstandingand narrow neck and a closure externally secured to said neck.

12. A frangible heat-insulating stopper having a hollow body portionadapted to rest upon the mouth of a heat-insulated receptacle, andprovided with a relatively narrow upstanding neck carrying a closureexternally secured thereto, said stopper havingalso a depending portionwhich is adapted to enter the mouth of such receptacle, said dependingportion being hollow and open to the space within said body portion.

13. The combination with a heat-insulated receptacle, of a hollowmulti-part frangible stopper for the container of said receptacle, saidstopper being substantially opaque as regards radiant heat and providedwith an external hollow shoulder which shoulder is adapted to rest uponsaid container at its upper portion to thereby sustain the stoppersomewhat above said upper portion, and a drinking cup secured to saidreceptacle and surrounding, directly bearing upon and enclosing theupwardly-extending part of said stopper.

14. The combination with a heat-insulated receptacle, of a hollowmulti-part frangible stopper for the container of said receptacle, saidstopper including an upstanding opentop neck, which is closed by a coverhaving a flange externally secured to said neck, said stopper beingsubstantially opaque as regards radiant heat and provided wlth anexternal hollow shoulder, which shoulder is adapted to rest upon saidcontainer at its closing the upwardly extending part of said stopper.

15. A heat-insulating mnlti-part stopper including a frangible bodyportion, provided with an upstanding open neck, a closure, and a sealdisposed between said neck and said closure.

In testimony whereof We alfix our signatures in the presence of twowltnesses.

WILLIAM W. SIMONSON. LEWIS V. D. BLAIR. Vitnesses:

HELEN BLAIR MADDOX, J. E. A. MADDOX.

